Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[dellzxd]

so, anyone know how to put more than one pool to mine ? trying to config for mining ring rentals

[djoctuk]

Thank you, Claymore.

[Gambler8899]

I'm having issue:
I have 3x290x and 2x290... one of 290x started showing 40-50sols, other 2 280.

I managed to solve issue with uninstalling problematic device (in device manager) and scan for hardware than, to get installed again.
Hash rate is now ok.
But after I reboot, hash rate drops again.

I reboot because rig freeze.

I really don't know what to do :O.

I tried 15.12., 16.11.4, currently on 16.11.3.

Problem started when I installed latest AMD driver and unistalled it than, clean uninstall (amd) and ddu also in safe mode.

[ober]

Power spikes? Rig rebooted due to PSU protection? Tell me which one would do that instead of just shut down PSU itself:

OVP (Over Voltage Protection)
UVP (Under Voltage Protection)
OCP (Over Current Protection)
OPP (Over Power Protection)
and SCP (Short Circuit Protection)

[DStefanov]

It is time for a more stable and friendly PSUs version v10.0! 

[Hotmetal]

Power spikes? Rig rebooted due to PSU protection? Tell me which one would do that instead of just shut down PSU itself:

OVP (Over Voltage Protection)
UVP (Under Voltage Protection)
OCP (Over Current Protection)
OPP (Over Power Protection)
and SCP (Short Circuit Protection)

My BIOS is set to automatically power itself back on after shutdowns / power losses / reboots etc.

[asidamani]

Somehow Claymore ZCash Miner v9 not as stable as V8.
sometimes it crashes after 12h sometimes after 14h...

Always about OpenCL hung.

The WD tries to restart but it fails somehow - I can close and reopen the app and it runs again.

It is better to reduce the frequency and volatge and leave more power headroom as there are many spikes.

[Casmania]

It is time for a more stable and friendly PSUs version v10.0! 

That is right. My power supply is dead for a few hours. After a few hours, I can use the PSU again and I have to reduce the frequency and intensity.

[QuintLeo]

some of my rigs reverted back to v8.

v9 has some serious stability issues that needs to be adressed.

Check clocks, volts, and PSUs.  I haven't had a single crash on 24 cards (470/480).  I have moderate undervolt and have PSUs at ~70% load (EVGA P2 1200w, 6 cards each).

 At one point my HD7870 rig was set to as far UNDERCLOCKED as I could get it, the card CAN'T be undervolted, and the PSU on it is a Seasonic X1250 Gold *LOAFING* at ballpark 15% of it's capasity.

 No, it's NOT the hardware when the same system runs at a serious OVERCLOCK with good stability on v8 running the same IDENTICAL hardware.

[adamvp]

It is time for a more stable and friendly PSUs version v10.0!  

That is right. My power supply is dead for a few hours. After a few hours, I can use the PSU again and I have to reduce the frequency and intensity.

About 30watts more than 8.0  on 4 x rx cards rig... 540-555w in total (505-520 prior)

[Demarsac]

@rozsada try the 16.9 drivers. How many watts is your PSU?

@mettalmag yes, dwarfpool is paying me roughly the same as Claymore miner says

What exactly did you get during the last 5 hours that Dwarfpool didn't find any block?
Dwarfpool needs more hashing power to become more profitable than flypool
Till then flypool rules...

I can see you don't understand how mining works lol. It doesn't matter if you are on a small pool that gets few block, vs. a large pool that gets a ton of them. On the small pool you get a higher share of the block instead of splitting it among thousands of miners. Over time it is a wash, same same, no difference.

Lol I do understand how mining works and you don't need to be a nuclear scientist to know that 0 blocks in a 5 hour timeframe means you get much less. It's a big gap that doesn't get covered unless the rest 19 hours dwarfpool mines 3 blocks per hour.
Which it doesn't....

Oh there is an easier way to count it. Just see how much Zec you get in a period of 24 hours with each pool and its crystal clear

It's an undisputable fact that dwarfpool lost the Zec train out of complacency and now they are running to gather hashrate
Good luck gathering it...

[ober]

My BIOS is set to automatically power itself back on after shutdowns / power losses / reboots etc.

Mine too. And I also had a rig restarting several times per hour with v9. Also I have exactly identical rig running rock solid since v9 release.
In all rare cases in the past when my PSU engaged a protection it didn't simply restart. I actually had to unplug it from 220V source.

My point here is don't blame your quality PSU or Claymore
Or blame him for writing a miner stressing your hardware worse than Furmark, Version 9 is now good for me

[christiano88]

Power spikes? Rig rebooted due to PSU protection? Tell me which one would do that instead of just shut down PSU itself:

OVP (Over Voltage Protection)
UVP (Under Voltage Protection)
OCP (Over Current Protection)
OPP (Over Power Protection)
and SCP (Short Circuit Protection)

Any of the "Over" stuff. Don't know that much to be able to tell exactly.

[christiano88]

some of my rigs reverted back to v8.

v9 has some serious stability issues that needs to be adressed.

Check clocks, volts, and PSUs.  I haven't had a single crash on 24 cards (470/480).  I have moderate undervolt and have PSUs at ~70% load (EVGA P2 1200w, 6 cards each).

 At one point my HD7870 rig was set to as far UNDERCLOCKED as I could get it, the card CAN'T be undervolted, and the PSU on it is a Seasonic X1250 Gold *LOAFING* at ballpark 15% of it's capasity.

 No, it's NOT the hardware when the same system runs at a serious OVERCLOCK with good stability on v8 running the same IDENTICAL hardware.

Read my post to understand, you clearly don't: https://asktom.cf/index.php?topic=1670733.msg17127240#msg17127240

[iMish]

I need advice about pool, at the moment we are mining on coinmine.pl, all online calculators are saying that I should get 6.6 zec a day, but I got only half of it, I'm aware that this is the mater of many factors, but I know that something is wrong, your advice would be much appreciated

dwarfpool.............read my earlier post about it

You posted that coinmine.pl paid for 830h/s and dwarfpool paid for 1100h/s when you rigs avg was 1080h/s. It means I should switch to it right ? sorry for obvious questions but I'm sleepy as hell been awaky ~28 hrs

I tried every pool out there and zec.suprnova.cc was the only one paying exactly what calculators say. Furthermore ocminer is all the day around here replying to questions and improving his pools, i prefer a pool maintained  by a miner than a pool maintained by some guy replying 7 days later (if ever they reply)

@rozsada try the 16.9 drivers. How many watts is your PSU?

@mettalmag yes, dwarfpool is paying me roughly the same as Claymore miner says

you probably mean dwarfpool displays roughly the same hashrate as Claymore miner says? actually it displays 15% - 20% higher hashrate and pays 50% less than what calculators say

[ober]

Read my post to understand, you clearly don't: https://asktom.cf/index.php?topic=1670733.msg17127240#msg17127240

So true about hardware, manufactures and quality

[christiano88]

One more thing about these power spikes...

The fact that it isn't the miner's fault, doesn't mean that Claymore can't do something about it. He can change the code to be more progressive on that part where power usually spikes. This will mean that he will do what the manufacturers didn't, place a more proper limit on the use of hardware. But I repeat, it has nothing to do with the miner itself as software, it is well done, with no obvious glitches. This change, if done by Claymore, might also result in lower speeds, so we might get like a v8+ version, where speed is only a bit higher, but not as high as v9. So careful what you ask, you can either work to make your systems stable and/or change equipment with more quality ones, or just ask for this modification, but expect consequences.

And to understand why the power spike happens, it appears when gpu is fully utilized, and ram is being purged and reloaded for the next job (not "share" like I previously said, it would happen too often). This is something that games don't do, and if some do, they don't do it as fast as this miner. So, he isn't using some magic trick to go over the limit, it is just the combined usage of both gpu core and mem controller being used at their highest point.

If I was able to get 5x470 oced working on a 750w psu at 1065h/s (claymore v9), which previously at stock settings would just shut down, then you can too.

[oslak]

any word from claymore?

[Hotmetal]

If I was able to get 5x470 oced working on a 750w psu at 1065h/s (claymore v9), which previously at stock settings would just shut down, then you can too.

By the same note, just because you did, doesn't mean everyone else (queue Jeremy Clarkson voice) "in the world" should have to jump through hoops.

v8 == no changes required. Works.
v9 == same configuration as v8. changes required. Doesn't work "out of the box" or even "on stock".

[Claymore]

ZEC has complex PoW which consists of many steps, they are different and therefore have different power usage.
If your PSU cannot handle power usage peaks, it's not a problem of the miner.
Also note that I try to achieve maximal speed, it always causes more power usage and more GPU usage, so if you have OCed GPUs or weak PSU it may work for v8 but may fail for v9.
BTW, I added a couple of additional range checks for better stability (these checks are non-critical, just for sure), I will release an update in a few hours. Note this update will not change power usage.